TVB-2678: Worked on fixing the simulation default name in case of simulation copy

Created by: VinczeRobert

If you copy a simulation named, let's say "robert" then the name of the copy will be "copy_of_robert" and if you wish to launch a branch that, it will be "robert_branch1" and not "copy_of_robert_branch1". However, if you change the default name from "copy_of_robert" to "bogdan", it will be "bogdan_branch1". I strongly think that there is no point in being able to change the copy name for branching, in the demo you also couldn't do it, but I guess we will work on this in the future.